Six major world cultures and their modern impact

These are the six civilizations that affectected the world. They all arose by themselves. Listed here are the six as well as two smaller ones. I am NOT a historian I only just thought it was cool. Won't answer any questions sorry! But everyone is free to comment.

Mesopotomia：Where the first civilizations began 6500 B.C.

Contributions: 60 second minute, 60 minute hour, 24 hour day

Egypt: Second oldest 3100 B.C.

Contributions: decimal system, glass making

Phoenicia: (Based off Mesopotamians) 1200 B.C.

Contributions: helped out the Greeks.

Greece: the first in Europe 800 B.C.

Contributions: modern alphabet, democracy

Indus Valley: Third in Eurasia 2600 B.C.

Contributions: brick making, the number zero

China: Fourth in Eurasia 2000 B.C.

Contributions: Asian stuff

Norte Chico (Peru): First in Americas 3200 B.C.

Contributions: new drugs and dyes

Mesoamerica: second in Americas 1500 B.C.

Contributions: popcorn, chocolate, vanilla

So there you have it. Many major things today comes from these ancient six. Kinda cool..